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Published byCollin Robertson Modified over 9 years ago
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Background Industrial Rubber Parts are made through Vulcanization – Converting rubber into more durable materials Vulcanization Uncured NR: Sticky, Deforms at Low T; Brittle at High T Vulcanized Rubber: Deforms under Stress, But reverts back to original shape
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Background Vulcanization done through compression molding, under high pressure (~500 ton clamping force) and temperature (~170C) Done through various molding machines: Rubber Injection Machine VS Rubber Compression Machine
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Problem High Pressure, and High Temperature requires Energy First Rubber has 95 Rubber Molding Machines High Energy Usage = High Electricity Fee Electricity Fees become larger part of unit cost
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Goal Reduce Costs by Increasing Molding Machines Thermal Efficiency -Recommend Purchase of Newer Machines -Determine saved energy costs from newer machines -Identify main causes of lower efficiency in older machines
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METHOD Compare Efficiency of Various Rubber Molding Machines E-Shine Machinery Co., Ltd based in Taiwan REP Injection Based in France Other Suppliers from China Based on current electricity bills, calculate time to return from investment
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Method Contact First Rubber Engineers to understand Rubber Molding Machine efficiency Determine Temperature of Machine, Pressure Created on current machines Identify causes of efficiency loss over time
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